This great piece is a result of two outstanding composers creative ability. The French composer Charles Gounod (1818-1893) used the Prelude No. 1 from "Das Wohltemperierte Klavier" by Johann Sebasian Bach (1685-1750) and added a beautiful melody to the original piece. The composition has the occurred in several versions both with and without lyrics and for many kinds of instrumentations.To the Conductor:It's important to take well care of the long phrases of the melody and it's warm and soft character.Make shure that the band balance the three elements of melody, harmony and the rhythmic (played by the clarinets) well. All these three is of equial importance and depend of each other.